class Settings:
    """储存游戏中所有设置的类"""
    def __init__(self):
        """初始化游戏设置"""
        # 屏幕设置
        self.screen_width = 1200
        self.screen_height = 800
        self.bg_color = (230, 230, 230)

        # 飞船设置
        self.ship_speed = 3
        self.ship_life = 1

        # 子弹设置
        self.bullet_width = 3
        self.bullet_height = 15
        self.bullet_color = (60, 60, 60)
        self.bullet_speed = 6.0
        self.bullet_allowed = 3

        # 外星人设置
        self.aline_speed = 3
        self.alien_life = 1

        # 外星人子弹设置
        self.aline_bullet_width = 3
        self.aline_bullet_height = 15
        self.aline_bullet_color = (225, 60, 60)
        self.aline_bullet_speed = 6.0
        self.aline_bullet_allowed = 3

